Combined friction and positive clutch



(No Model.) 2 Sheets-Sheet 1. J. S. ADAMS. COMBINED PRIGTION .AND POSITIVE CLUTCH. No. 460,625.

Patented 001;. 6, 1891.

flb p'r/wg I 2 Sheets-Sheet 2.

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J. s. ADAMS. COMBINED FRIGTION AND POSITIVE CLUTCH.

.7 t/i L F I v v(No Modei.)

UNITED STATES PATENT QFFICE.

JOHN S. ADAMS, F ELGIN, ILLINOIS.

COMBINED FRICTION AND POSITIVE CLUTCH. I

QPEGIFICATION forming part of'Letters Patent No. 460,625, dated October 6, 1891. I

' Application filed A ril 7. 1891. Serial No. 388,065. (No model.)

To all whom, it may concern:

Be it known that I, JOHN SPENCER ADAMS, a citizen of the United States, residing at Elgin, in the county. of Kane and State of Illinois, have invented certain new and useful Improvements in a Combined Friction and Positive Clutch; and I do declare the following to ,the machinery startedanu brnnght: up tospeed by contact be a full, clear, and exact description of the Invention, such as will enable others skilled in the art to which it appertains to make and use the same.

M yinvention relates toacombined friction and positive clutch, and its novelty will be fully understood from'the following description and claims, taken in connection with the accompanying drawings, and the objects of my Invention are to form a clutch by which connected therewith may be of the frictional mechanism, after which the positive clutching device may be thrown into action. I attain these objects by the mech anism illustrated in the accompanying drawings of a clutch-coupling, in which- Figure 1 shows outer face of fixed head. Fig. 2 shows inner face'of fixed head. Fig. 3 shows outer face of sliding head. Fig.4 shows inner face of sliding head. Fig. 5 is a side View showing clutch mechanism disconnected. Fig. 6 is a vertical section showing positive clutch connected. Fig. 7 is a vertical section showing frictional connection.

Similarletters refer to similar parts throughout the several views in the drawings.

A refers to the central shaft, in two sec-' tions, to be coupled by the clutch-coupling.

B is the fixed head firmly secured to the shaft by the key G and the set-screws shown. C is the sliding head, which may be moved longitudinally upon the shaft, but is prevented from revolving loosely thereupon by means of the feather F, secured in the shaft.

D. is a friction-ring securely attached to head B by screws or other suitable means. The outer face or. periphery of this ring D is cylindrical and smooth; but its inner surface or bore has a marginal contraction or internal annular flange with beveled edges, as shown byd in the sectional views.

E is a spring friction-ring,which is secured by screws to sliding head 0. The cylindrical .portion of this ring is sawed intoageg ments, which imparts to these segments a spring action, which permits their ends to be I Upon the ends of the segments of ring E are formed external enlargements with beveled edges, as shown at e in the several views. The inner circle of screws connecting ring E with head 0 are intended to be used to adjust the friction of the parts e and d, the friction being increasedby dishingthe center of the flat portion of the ring, and thus expanding the friction ends of the segments.

H is a bushing or hearing for the shaft. b b are the positive clutch-jaws of .the fixedhead: 0 c are the positive clutch-jaws of the sliding head.

The operation of this clutch may be readily 111 Fig. 5 the clutch mechanism is 'dis'con-' nected. When it is desired to couple the two sections of the shaft, (one section being in motion,) the sliding head is advanced so as to bring the frictional parts (1 and e into contact, as shown in Fig. 7. The clutch is held 7 understood by referring to Figs. 5, 6, and 7. j

at this point until both sections of shaft are revolving at substantiallythe same speed, and then the sliding head. is quickly thrown forward, thus locking the two heads together, I

as shown in Fig. 6, and forming a' positive clutch.

Having described my invention, what I claim, and desire to secure by Letters Patent, is-- 1. In a clutch, substantially as described, the combination, with the head fixedly mounted upon its shaft and the friction-ring connected to said head and provided on its inner surface or bore with a marginal flange having beveled edges, of the sliding head keyed or feathered upon its shaft, and the friction-ring connected to said head and having its cylindrical portion formed by segments provided with external enlargements at their ends, thesaid enlargements of the segments having beveled edges and adapted to operate in conjunction with the beveled flange of the friction-ring upon the fixed head, substantially as specified.

2. In a clutch, the combination, with the head fixedly mounted upo'n its'shaft, the friction-ring connected to said head and provided on its inner surface or bore with a marginal adapted to engage those of 'the fixed head, no flange having beveled edges, and the clutchsubstantially as and for the purpose specijaws upon the inner face of said head, of the fied.

sliding headkeyed or feathered upon its shaft, In testimony whereof I affix my signature in the friction-ring connected to said head and presence of two witnesses. having its cylindrical portion formed by seg- JOHN S. ADAMS. ments provided with external enlargements Witnesses:

at their ends having beveled edges, and the WILLIAMWILsoN,

clutchrjaws on the inner face of said head PERCY D. PARKS. 

